Based on what I could find, this LCD is likely an HD44780 compatible display, but it has an I2C interface in front of that chipset; without a datasheet (I couldn't find anything - a few people asking about it, though), it would be nearly impossible to figure out.
Well - MikMo has solved a big part of the mystery; from the datasheet for the PCF8574 ( _sheet/PCF8574.pdf) it looks like there are 3 address set bit lines from the chip (A0-2, pins 1-3) - so you would either have to figure that out, or program the I2C to do the HD44780 setup, and try the 8 different addresses until one of them works...
kl sn102 94v 0 datasheet pdf 18
2ff7e9595c
Comments